bonanza

The new Doubles are not designed to handle the 50,000 psi and over pressures of the Rimless cases. The design is over 150 years old and hasn't changed that much. What has happened is stronger steel.

The problem has never been the steel as much as the design and the lack of a reliable system for extraction of rimless cases. Those dinky little ears and those dinky little springs that make them work are the same design that has failed for 100 years. No reason to expect them to be better now.